Firefighters battled a two-alarm fire at the old Christmas Island Resort building on Weirs Boulevard in Laconia.

Officials said the building was fully engulfed in flames when crews arrived just before 9:00 p.m Saturday.

Officials said the building was vacant and set to be demolished to make way for condos within the next three weeks. They called the fire suspicious.

"It is definitely a suspicious fire. We have the State Fire Marshal here, and they are investigating. We had 150-200 bystanders because there was a high school reunion going on in the restaurant directly next door," said Chief Ken Erickson of the Laconia Fire Department.

The New Hampshire Fire Marshal had two officials on site Saturday.

Crews will return back on scene Sunday to continue clean-up efforts.

Investigators are still working to determine a cause.

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